File photo shows a bronze seal unearthed from a tomb dating back to the Sixteen Kingdoms (304-439 A.D.) in Leijia Village of Xixian New Area, northwest China's Shaanxi Province. Archaeologists in northwest China's Shaanxi Province said Friday they have discovered an ancient tomb group dating back more than 1,500 years in a village in the province. Archaeologists with the Shaanxi Academy of Archaeology said that a cluster of 12 tombs dating back to the Sixteen Kingdoms (304-439 A.D.) was excavated from 2017 to 2018 in Leijia Village of Xixian New Area, along with sacrificial sites and millet. (Xinhua)